Screw device



FIG. 1 is a perspective view of the screw device of the present invention;

FIG. 2 is an elevational side view of the screw device shown in FIG. 1;

FIG. 3 is a left side view of the screw device shown in FIG. 1;

FIG. 4 is an elevational front view of the screw device shown in FIG. 1; and,

FIG. 5 is an elevational rear view of the screw device shown in FIG. 1. 

The ornamental design for a screw device, as shown and described. 